D.A. says there isn't evidence to determine the driver in crash

Ventura County District Attorney Gregory Totten says a 2005 BMW sedan registered to the actress and her ex-husband Richard Sambora knocked down a "no parking" sign and drove off April 17 in Thousand Oaks.

Locklear was later cited for misdemeanor hit-and-run.

But in a statement Wednesday, Totten said there's not enough evidence to determine who was driving.

A call to Locklear's attorney, Blair Berk, was not immediately returned Thursday.

The 48-year-old "Melrose Place" star has a previous arrest for driving under the influence of prescription drugs but she pleaded guilty last year to a lesser charge of reckless driving.